BMW DTC P0C4C – Hybrid/EV Battery Pack Coolant Pump Supply Voltage Circuit Low
DTC P0C4C meaning on BMW
The Diagnostic Trouble Code (DTC) P0C4C for BMW indicates an issue with the Hybrid/EV Battery Pack Coolant Pump Supply Voltage Circuit being low. This code is specific to hybrid or electric vehicles and relates to the system responsible for cooling the battery pack to maintain optimal operating temperatures.
BMW DTC P0C4C symptoms
Symptoms of the BMW DTC P0C4C may include:
- Check Engine Light illuminated on the dashboard
- Reduced hybrid or electric vehicle performance
- Increased battery temperature warnings
- Overheating of the battery pack
BMW DTC P0C4C causes
Common causes of the BMW DTC P0C4C may include:
- Faulty Hybrid/EV Battery Pack Coolant Pump
- Issues with the coolant pump supply voltage circuit
- Electrical wiring or connector problems
- Problems with the battery temperature sensors
BMW DTC P0C4C seriousness
The BMW DTC P0C4C is a serious issue that should be addressed promptly. Ignoring this code can lead to potential damage to the battery pack, reduced efficiency, and even safety hazards in extreme cases.
How to diagnose DTC P0C4C on BMW
To diagnose the DTC P0C4C on a BMW, a mechanic would typically perform the following steps:
- Use a diagnostic scanner to retrieve the specific fault code
- Inspect the Hybrid/EV Battery Pack Coolant Pump for any visible damage
- Check the coolant pump supply voltage circuit for continuity and proper voltage levels
- Test the battery temperature sensors for functionality
How to fix DTC P0C4C on BMW
To fix the DTC P0C4C on a BMW, the following steps may be taken:
- Replace the faulty Hybrid/EV Battery Pack Coolant Pump
- Repair any issues with the coolant pump supply voltage circuit
- Address any wiring or connector problems related to the system
- Ensure proper functioning of the battery temperature sensors
How to erase DTC P0C4C on BMW
To erase the DTC P0C4C on a BMW, the fault code can be cleared using a diagnostic scanner. Once the underlying issue has been addressed and fixed, the code can be reset to remove the Check Engine Light and reset the system for normal operation.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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